Disinfecting agents.



K Drawing.

UNITED STATES PATENT OFFICE.

max ENGELMANN AND BENEDIEKT MEBKEL, 0F ELDER-FIELD, GERMANY, ASSIGNOBS TO SYNTHETIC PATENTS 00., 1110., 0]? NEW YORK, N.- Y., A CORPORATION OF. NEW

YORK.

. To all whom it may concern: 7

' and Bnnnnnrr Mnnnnn, doctors of philosophy, chemists, citizens of the German Empire, residing at Elberfeld, Germany, have invented new. and useful Improvements in Disinfecting Agents, of which the following is a specification.

The mercurized phenols and acids which have proved to be valuable disinfecting agents easily dissolve in dilute alkalis. The alkali salts however cannot be is lated in a solid state from such solutions without undergoing decomposition.

We have now found that easily soluble and very valuable disinfecting products can be obtained in a solid state by mixing mercurized phenols or acids with caustic alkalis. Indiiferent compounds e. g. salts can also be added to these mixtures.

The new products are stable mixtures which can be handled and transported without danger of undergoing decomposition, and have the advantage that they can be readily dissolved in water. The caustic alkali present acts not only as a solublizing agent but when seed corn is to be disinfected,

it also serves to neutralize the small quantities of acids that are usually present in the corn.

The new reparations are whitish to yellowish pow ers soluble in water; insoluble in alcohol and ether; giving with hot ammonium sulfid a black precipitate of Hg,S. By beating them with concentrated hydrochloric acid they are split up into HgGl and a phenol or an aromatic acid.

The new preparations have proved to be valuable disinfecting agents especially for disinfecting seed-corn.

In order to illustrate the new process more fully the following example is given, the parts being by wei ht 5-10 parts ofmercurichlorophenolsul ate havingmost probably the formula: 1

and 5 parts of caustic soda are ground to Specification of Letters Patent.

Application in: Iovember s, 1914. se ials. s7o,49s.'

DISIH'FECTING AGENTS.

Patented.- Jan. 11, 1916.

curized products can be used; c. g. mercuriphenolacetate mercurized para-nitrophenol:

mercuribenzoic acid co-o \ mercurlchlorobenzolc acid:

'lyes of caustic soda can be used and the resnltin mixture dried.

We 0 aim 1. The herein described new disinfecting preparation containing an orga ic mercury com ound and an alkaline sub tance, said pro ucts being a whitish to yellowish pow der soluble in water; insoluble'in alcohol and ether; giving with hot ammonium sulfid a black precipitate of Hg,S; being split up into HgCl and a phenol or an aromatic acid by heatin it with concentrated hydrochloric acid, su stantially as described.

2. The herein described new disinfecting preparation comprising an organic mercury compound and a caustic alkali, said preparation being a whitish to yellowish powder soluble in water; insoluble invalcohol and ether: giving with hot ammonium sulfid a black precipitate of Hg S; being split up into HgCl and a phenol or an aromatic acid by heating it with concentrated hydrochloric acid, substantially as described.

The herein described new disinfecting preparation comprising mercurichlorophenol and an alkaline substance, said preparation being a whitish stable powder clearly soluble in Water, insoluble in alcohol and ether; giving With hot ammonium sulfid a blacl' precipitate of Hg S; being split up 4. The herein described new disinfecting 20 preparation comprising mercurichlorophenol and caustic soda, said preparation being a whitish stable powder clearly soluble in water, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

MAX ENGELMANN. [Ls] BENEDIKT MERKEL. [10s.] -Witnesses:

HELEN NUFER, ALBERT NUFER.

preparation'comprising an organic mercury compound and a caustic alkali, said preparation being a whitish to yellowish powder soluble in water; insoluble in alcohol and ether; giving with hot ammonium sulfid a blackprecipitate of -Hg S; being split up into HgCl and a phenol or an aromatic acid by heating it with concentrated hydrochloric acid, substantially as described.

3. The herein described new disinfecting preparation comprising mercurichlorophe- 1101 and an alkaline substance, said preparation being awhitish stable powder clearly Correction in Letters Patent'No. 1,167,642

soluble in water, insoluble in alcohol and ether; giving with hot ammonium sulfid a black precipitate of Hg S; being split up in the Patent Ofiioe.

" [sun] Signed and sealed thie 1st lda y (if i ebruai A; 1)., 19 16.

into :HgCl and chlorophenol by'heating it with concentrated hydrochloric acid, substantially as described.

4. The herein desc'ribcdnew disinfecting preparation comprising mercurichlorophei101 and caustic soda, said preparation being a whitish stable powder clearly soluble in It is hereby certified that in Letters Patent F0. 1,167,642, granted'Jenuary'li, [1916, upon the application 0i Max Engelmann and Benedikt Merkel, of Elberfeld, Germany, for an improvement in Disinfecting Agents, an error appears in the printed specification requiring correctionas follower Page 1, lines 46-51, formula,

far the symbol #0," read 80,; and am the said Imtters ma should be read with this correction therein that \the same may conform to the record of the case J. r NEWTON, Am

It is hereby certified that in Letters l etent No. 1,167,642, granted Jenuary 11, 1916, upon the application of Max Engelmann and Benedikt Merkel, of Elherfeld, Germany, for an improvement in Disinfecting Agents, an error appears in the printed specification requiring correction as follows: Page 1, lines 46-51, formula,

for the symbol 0, read S0 and that the said Letters Patent should be read with this correction therein that i the same maj conform to the record of the case in the Patent Office.

Signed and sealed this 1st da.y of February, A. D., 1916.

J. T. NEWTON,

Acting ojPatam.

[sun] 

